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Contributions of the GEODSS System to Catalog Maintenance
April 2000
J. G. Miller, The MITRE Corporation
W. G. Schick, ITT Industries, Systems Division
ABSTRACT
The Electronic Systems Center completed the Ground-based
Electro-Optical Deep-Space Surveillance (GEODSS) Modification
Program (GMP) in 1999 with new mission critical computer
resources, including sensor controllers at the GEODSS sensor
sites and an Optical Command, Control, and Communications
Facility (OC3F) at Edwards AFB. The GEODSS system with the
GMP configuration became operational on 3 August 1999, with
the OC3F dynamically scheduling the three GEODSS sites in
response to tasking from the Space Defense Operations Center
(SPADOC). SPADOC still tasks the individual GEODSS sites,
Socorro, Maui, and Diego Garcia, based on site visibility and
capacity, but the site tasking messages are transmitted to the
OC3F instead of the individual sites. The OC3F combines the
individual site tasking messages into a single database and
dynamically schedules the individual sites in near real-time,
independent of which site SPADOC tasked. For example, a
high-priority satellite may be tasked by SPADOC to Socorro and
not Maui, even though it has visibility, but the dynamic scheduler
may schedule Maui to track the satellite because Socorro is
clouded over during the satellite pass. SPADOC tasks the
optical sites hours before their shooting periods begin, assuming
clear skies, because it cannot predict the weather in advance.
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